Circular-knitting machine



(No Model.) 2 SheetsSheet 1.

D. H. HILL. CIRCULAR KNITTING MACHINE.

Patented May 17; 1892.

(NVENTOI? WITNESSES: Z Emma;

ATTORNEY.

00., gwzrro-Ln'ma. WASHIN (No Model.) 2 Sheets-Sheet 2.

D. H. HILL. GIRGULAR KNITTING MACHINE.

No. 475,058. Patented May 17,1892,

I [9 V. 'l a IIIIIIII "mull! IllI|I|I|llllllllllllfil i 13H]*"'iilllnla;iliiirll l ATTORNEY.

' UNITED STATES PATENT OFFICE.

DAVID HASTINGS HILL, OF PHILADELPHIA, PENNSYLVANIA.

CIRCULAR-KNITTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 4"? 5,058, dated May1'7, 1892.

Application filed December 30, 1891. Serial No. 416,585. (No model.)

To all whom it may concern.-

Be it known that I, DAVID HASTINGS HILL, a citizen of the United States,residing in the city and county of Philadelphia, State of Pennsylvania,have invented a new and useful Improvement in Circular- KnittingMachines, which improvement is fully set forth in the followingspecification and accompanying drawings.

My invention relates to improvements in circular-knitting machinesdesigned for making stockinette cloth; and it consists ofaknitting-machine having extra knocking-over and clearing wheels,substantially as described, wherebya backin g-th read is secured to thefabric knit thereon by a tying-thread withoutthe latter being exposed onthe face of said fabric.

Figure 1 represents a plan view of a circular-knitting machine, partlybroken away, embodying my invention. Fig. 2 represents, as on a planesurface, a view showing the position of the needles and threads duringthe tying-in of the backing-thread. Fig. 3 represents a side view of adetail portion of the machine.

Similar letters of reference indicate corresponding parts in the severalfigures.

Referring to the drawings, A designates a circular-knitting machineadapted to make thereon stockinette cloth.

B designates a backingwheel adapted to depress a portion, of the needles0, so that the backing-thread D fed to the machine is in front of someof the needles and behind the others.

E designates a clearing-wheel, which lowers the backing-thread D on theneedles away from the beards C of the latter. wheel F forms loops on thelight thread F fed to the needles and under the beards 0 thereof, thepress-wheel G holding back the beards, so that the inside landingwheelI-I raises the thread D between the needles and outside or above thelower ends of the beards.

The parts so far described are old and well known and are not claimedper se.

J designates a knocking-over wheel of usual form adapted for raising theportion of the backing-thread D which is in front of a needle over andbehind the same and over the The looptying-in thread, and K designates aclearingwheel of usual construction for lowering the thread, so that theentire thread D is placed behind the needles but in front of the tyingin thread F, which latter is in front of the said needles, so that asthe other threads L and M are fed to the needles by the loopwheels N andP and united with the stitches Q, already on the needles, by means ofthe operation of the dividing-wheel R, presser-' wheel S, and landingand knockingover wheels T and U, the said backing-thread D forms abacking for the cloth, the tying-in thread F not being exposed on theface thereof. The pushback V has a bridge or arched portion WV above thelanding-wheel I-I, so as to permit the approach of the latter to theneedles. Without the wheels J and K the tying-in thread would appear atintervals or at the points where the backing-thread would be in front ofthe needles, as at a, so that the face of the fabric wouldnot present auniform appearance.

The mechanism, with the exception of the said Wheels J and K, is old andis not claimed per se.

Having thus described my invention, what claim as new, and desire tosecure by Letters Patent, is

1. A circular-knitting machine for the purpose described, having theextra knockingover wheel J on the outside of the needlecylinder and theadjacent clearing-wheel K,

said parts being combined substantially as and for the purpose setforth.

2. In a circular-knitting machine, the combination of a rotaryneedle-cylinder with needles thereon, mechanism,substantially asdescribed, consisting of backing, clearing, looppresser, and insidelanding Wheels for placing a backing-thread behind some of said needlesand in front of the others, and for placing a tying-in thread under thebeards of said needles, an outside knockingover wheel for lifting theportion of the backingthread in front of the needle over the same andthe tying-in thread, and a clearing-Wheel for lowering said threads onthe said needles, said parts being combined substantially as described.

3. A circular-knitting machine having a sidelanding-wheelTandknocking-ever wheel needle-cylinderwithneedlesthereomthebaek- U, saidparts being combined substantially 1o ing-wheel B, the clearing-wheel E,the loopas described.

wheel F, the presser-wheel G, the inside land ing-wheel H, theknocking-over wheel J, ont- DAVID HASTINGS HILL side of saidneedle-cylinder, the clearing- Witnesses: wheel K, the loop-wheels N andP, the divid- JOHN A. WIEDERSHEIM,

ing-Wheel R, the presser-wheel S, and the in- WM. C. WIEDERSHEIM.

